CVE ID:	CVE-2006-5178
Description:	Race condition in the symlink function in PHP 5.1.6 and earlier allows local users to bypass the open_basedir restriction by using a combination of symlink, mkdir, and unlink functions to change the file path after the open_basedir check and before the file is opened by the underlying system, as demonstrated by symlinking a symlink into a subdirectory, to point to a parent directory via .. (dot dot) sequences, and then unlinking the resulting symlink.
Test IDs:	1.3.6.1.4.1.25623.1.0.57462
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2006-5178 BugTraq ID: 20326 http://www.securityfocus.com/bid/20326 Bugtraq: 20061003 Advisory 08/2006: PHP open_basedir Race Condition Vulnerability (Google Search) http://www.securityfocus.com/archive/1/447649/100/0/threaded Bugtraq: 20061009 PHP open_basedir with symlink() function Race Condition PoC exploit (Google Search) http://www.securityfocus.com/archive/1/448020/100/0/threaded http://lists.grok.org.uk/pipermail/full-disclosure/2006-October/049850.html http://www.mandriva.com/security/advisories?name=MDKSA-2006:185 http://www.hardened-php.net/advisory_082006.132.html http://www.neosecurityteam.net/index.php?action=advisories&id=26 http://www.securityfocus.com/archive/1/448953/100/0/threaded http://securitytracker.com/id?1016977 http://secunia.com/advisories/22235 http://secunia.com/advisories/22424 http://securityreason.com/securityalert/1692 TurboLinux Advisory: TLSA-2006-38 http://www.turbolinux.com/security/2006/TLSA-2006-38.txt http://www.vupen.com/english/advisories/2006/3901 XForce ISS Database: php-openbasedir-security-bypass(29340) https://exchange.xforce.ibmcloud.com/vulnerabilities/29340